Home / 85,916.60-128,907.30-41,582.60

Finding the Fourth Proportional to 85,916.60, 128,907.30 and 41,582.60

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Solution

The fourth proportional to 85,916.60, 128,907.30 and 41,582.60 is: 62,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.60 : 128,907.30 = 41,582.60 : x
  2. Step 2: Convert to fraction form
    85,916.60/128,907.30 = 41,582.60/x
  3. Step 3: Cross multiply
    85,916.60x = 128,907.30 × 41,582.60
  4. Step 4: Simplify right side
    85,916.60x = 5,360,300,692.98
  5. Step 5: Solve for x
    x = 5,360,300,692.98/85,916.60
  6. Step 6: Final answer
    x = 62,389.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.